Evaluate (f-g)(2)=?

Let f(x)=2x^2+8
g(x)=x-3

Answers

Answer 1

Answer:

[tex]\huge\boxed{(f-g)(2)=17}[/tex]

Step-by-step explanation:

[tex](f-g)(x)=f(x)-g(x)\\\\f(x)=2x^2+8;\ g(x)=x-3\\\\(f-g)(2)=f(2)-g(2)\\\\f(2)\ [g(2)]-\text{substitute}\ x=2\ \text{to}\ f(x)\ [g(x)]\\\\f(2)=2(2^2)+8=2(4)+8=8+8=16\\g(2)=2-3=-1\\\\(f-g)(2)=16-(-1)=16+1=17[/tex]


Related Questions

What is this called? I’m trying to look up a video on how to do these.
y = - 7/2x -4

Answers

Answer:

linear equations, only when it is y=(equation with an x  

variable)) or x=(equation with an y  

variable), usually you tend to graph these.

PLEASE HELP I WILL MARK YOU BRANILIEST

Answers

Answer:

A. base: 2.5in Height: 6in area: 7.2in

B. Base: 4.8cm Height: 4cm area: 5cm

Step-by-step explanation:

Express 48^(1/4) in simplest radical form.

Answers

Answer:

[tex]2\sqrt[4]{3}[/tex]

Step-by-step explanation:

[tex]48^\frac{1}{4} = \sqrt[4]{48}[/tex]

Expanding [tex]\sqrt[4]{48}[/tex] gives [tex]\sqrt[4]{2*2*2*2*3}[/tex] which is equal to [tex]2\sqrt[4]{3}[/tex]

Simplify the expression: 4 + 10x + 5 - 9x

Answers

[tex]\text {Hello! Let's Solve this Equation!}[/tex]

[tex]\text {In order to Simplify this Equation you must subtract}[/tex] [tex]\text { it with the same match as it. Let me show what I mean.}[/tex]

[tex]\text {\underline {Subtract}}[/tex]

[tex]\text {10x-9x=1x=x}[/tex]

[tex]\text {\underline {Add}}[/tex]

[tex]\text {4+5=9}[/tex]

[tex]\text {Your Answer would be:}[/tex]

[tex]\fbox{x+9}[/tex]

[tex]\text {Best of Luck!}[/tex]

Hey there!☺

[tex]Answer:\boxed{x+9}[/tex]

[tex]Explanation:[/tex]

[tex]4+10x+5-9x[/tex]

Let's simplify.

[tex]4+10x+5+-9x[/tex]

Now let's combine like terms.

[tex](10x+-9x)+(4+5)[/tex]

[tex]x+9[/tex]

Hope this helps!

so uh who knows this??!

Answers

Answer:

Your answer is going to be d

Step-by-step explanation:

Add up the angles you already have and subtract that sum from 180

180 - 133 = 47

Answer:

D

Step-by-step explanation:

39+94=133

180-133=47

The math club at Emily's middle school has 40 members. Only 85% of the members attend Saturday meetings. Use the number line below to determine the number of members who attend Saturday's mee

Answers

Answer: 34 members.

Step-by-step explanation:

We have 40 members.

Only 85% of them attend the Saturday meetings.

If we have a set of N objects, and the x% of them can be calculated as:

(x%/100%)*N

Now, if we want to know the exact amount that attends the Saturday meetings, then we must compute:

(85%/100%)*40 = 0.85*40 = 34.

Answer:

Please see attached number line

The 85% corresponds with having 34 members in attending Saturday meetings

Step-by-step explanation:

The number of members in the math club at Emily's middle school = 40

The percentage of members that attend Saturday meetings = 85%

Therefore, the number of members that attend Saturday meetings is given as follows;

85% of 40 = 0.85 × 40 = 34 members

Where we have a number line graduated in percentages, we get;

Percentage of members, 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100

Number of members, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40

Therefore, the 85% corresponds with having 34 members in attending Saturday meetings

40x-20=100+10x x= Please help asap!

Answers

Answer:

x= 4

Step-by-step explanation:

40x-20=100+10x

Subtract 10x and add 20 both sides:

30x= 120

x=4

2. What are the five components of health and wellness, and how are they defined?​

Answers

Answer

1. Cardiovascular endurance

2. Muscular strength

3. Muscular endurance

4. Flexibility

5. Body composition

Step-by-step explanation:

Solve for
16 – 2t = t +9

Answers

16 - 2t = t + 9
t = 7/3

540 repeated is equal to x/37
Is this true?

Answers

Answer:

The answer is x= 19980

Step-by-step explanation:

You do 540 = x/37 ---> then divide by 1/37 on each side and you get --> 19980 = x ---> you can plug it back in and get the right answer. 540 = 19980/37 = --------> 540=540

On what dThe function f(x) = x5 + (x + 3)2 is used to create this table. A 2-column table with 4 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1. The second column is labeled f of x with entries negative 31, question mark, 9, 17. Which value completes the table? –17 –3 1 3

Answers

Answer:

the answer is 3

Step-by-step explanation:

I just did it

The value of the function for x=-1 is 3.

The given function is [tex]f(x)=x^{5} +(x+3)^{2}[/tex].

What is a function?

In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.

From the table, we get coordinates as (-2, -31), (-1, y), (0, 9) and (1, 17).

To find the y value of the coordinate (-1, y), substitute x=-1 in the given function.

That is, [tex]f(-1)=(-1)^{5} +(-1+3)^{2}=3[/tex]

Therefore, option D is the correct answer.

To learn more about the functions visit:

https://brainly.com/question/12431044.

#SPJ6

the volume of a bucket of water is 864 cubic inches. how many buckets are needed to fill a 7 cubic foot tank?

Answers

Answer:

We have the relation:

1ft = 12 inches.

Then, if we cube both sides, we have:

(1ft)^3 = (12 in)^3

1ft^3 = 288 in^3.

Now we know that:

The bucket is 864 in^3

The tank is 7 ft^3.

knowing that 1 ft^3 = 288in^3

Then 7 ft^3 is seven times that:

7ft^3 = 7*(1ft^3) = 7*(288in^3) = 2016 in^3

Now the number of buckets needed to completely fill the tank is:

N = (2016 in^3)/(864in^3) = 2.33

So you need 2.33 buckets, or we can round it up to 3 buckets, where the third bucket will have some water inside it when the tank is completely filled.

what is the slope of a line that passes through (-4,1) and (5,2)

Answers

basically use the formula y1-y2 over x1-x2 and just plug in the number

If g(x) = (24 – x)2 + 7, what is
the value of g(6)?
O 250
O-2
O 243
O 331

Answers

[tex]g(x) = (24 - x)2 + 7\\= 48 - 2x + 7\\g(6) = 48 - 2 \cdot 6 + 7\\= 48 - 12 + 7\\= 43[/tex]

help i need help i can't figure this out​

Answers

Answer: A) 23

Step-by-step explanation:

3^2 + ( 6 - 2 ) ⋅ 4 -6/3

3^2 + 4 ⋅ 4 -6/3

9 + 4 ⋅ 4 -6/3

9 + 16 -6/3

25 - 6/3

75/3 -6/3 = 69/3

69/3 = 23

Answer:

23

Step-by-step explanation:

3^2 + (6 - 2) x 4 - 6/3

3^2 + 4 x 4 - 6/3

9 + 16 - 6/3

25 - 6/3

6/3 = 2

25 - 2 = 23

An airplane takes off over flat area when it is 2500' above the Earth it has covered 3000' on the ground how many feet approximately has it flow through the air

Answers

Answer:

3905.12 feet

Step-by-step explanation:

we can form a triangle in order to use the Pythagorean theorem: a² + b² = h²

where:

a = distance covered on the ground

b = height above the Earth

3000² + 2500² = h²

h² = 9000000 + 6250000 = 15250000

h = √15250000

h = 3905.12 feet

is it true or false for a, b and c?

Answers

Answers:

a) Trueb) Falsec) True

====================================================

Explanations:

a) y = sin(theta) describes the height of the point (x,y). Because m = sin(theta), this means m is the height. b) Cosine is not positive in quadrants II and III, where x < 0. This is because x = cos(theta).c) Adding pi radians to the angle theta will rotate it 180 degrees to have it land in the fourth quadrant (southeast quadrant).

The answer is True c

Solve for x: 4.23x + 1 = 17.8929 A. 0 B. 14.6629 C. 5.23 D. 6.23 PLEASE HELP!!!

Answers

Answer:

d

Step-by-step explanation:

HELPPP PLZZZZ ASAPPPPPP

Answers

Answer:

B. [tex]d = \sqrt{x^2 +y^2}[/tex]

Step-by-step explanation:

Please please help
|q-8|=14

Answers

Answer:

22, -6

Step-by-step explanation:

q-8=14 or 8-q=14

q=22 or q= -6

Answer:

the answer for the problem |q-8|=14 is q=22 or q= -6

A cone has a radius of 6 inches and a height of 11 inches. What is the volume of the cone? 30 points

Answers

Answer:

vol. = 414.7 in³

Step-by-step explanation:

given:

A cone has a radius of 6 inches and a height of 11 inches.

find:

What is the volume of the cone?

volume of a cone = ¹/₃ π r² h

where r = 6 in.

h = 11 in

plugin values into the formula:

vol. = ¹/₃ π (6)² 11

vol. = 414.7 in³

Answer:

414.48 inches³

Step-by-step explanation:

Volume formula

V = Ab×h/3

Ab = πr²

V = πr²×h/3

= 3.14(6in)²×11in/3

= 3.14×36in²×11in/3

= 1243.44in³/3

= 414.48 inches³

Choices are...
A)1120
B)2275
C)3500
D)2345
It's Side Splitter Theorem

Answers

Answer:

B

Step-by-step explanation:

The sections of the parallel roads split by the transversals are in proportion, that is

[tex]\frac{350}{300}[/tex] = [tex]\frac{first}{1650}[/tex] ( cross- multiply )

300 first = 577500 ( divide both sides by 300 )

first = 1925 ft

Thus

Elm st → Maple st = 1925 + 350 = 2275 ft → B

Find the slope and y−intercept. y − 8 = 2x + 6

Answers

The slope is 2 and the y-intercept is (0,14)

Evaluate m+n for m = 9 and n=7​

Answers

Answer:

16

Step-by-step explanation:

Step-by-step explanation:

M=9 so m+n becomes 9+n.

N=7 so 9+n becomes 9+7.

9+7=16

I dont get this question.

Answers

Answer:

5 1/2

Step-by-step explanation:

final

where is sandy mistake ive been trying for 30 mintues and still cant find it im not very good at math please help

Answers

Answer:

Sandy did not follow PEMDAS and added first instead of doing her multiplication and division and then her addition and subtraction the answer would be 18

Find the missing fraction.
3
2
10
4
3

Answers

Answer:

work attached and shown

What is 5x-(3+7)=9+2(x-8)

Answers

5x-3-7=9+2x-16
5x-10=2x-7
5x-2x=-7+10
3x=3
X=1

Answer:

x= 1

Step-by-step explanation:

5x - (3+7)=9+2(x-8)

Add the numbers 3 + 7= 10

5x - 10= 9 + 2(x-8)

Expand 9 + 2(x-8): 2x - 7

5x - 10 = 2x - 7

Add 10 to both sides

5x -10 + 10 = 2x -7 + 10

Simplify 5x = 2x + 3

Subtract 2x from both sides

5x -2x = 2x + 3- 2x

Simplify

3x = 3

Divide both sides by 3

3x/3 =3/3

Simplify

x= 1

2x+4 translation 7 units left

Answers

Answer: (-5,4)

Step-by-step explanation:

I’m not quite good at explaining but I think my answer might be right not sure

Answer:

(2x+7)+4

Step-by-step explanation:

Anytime it says number of units left is a +7.

And it goes in the parentheses or absolute

Draw the graph of y= 2 - 1/2x
(Straight Line graphs)

Answers

Answer:

Slope: [tex]-\frac{1}{2}[/tex]

y-intercept: [tex](0,2)[/tex]

Look below for graph.

Step-by-step explanation:

[tex]y=2-\frac{1}{2}x\\y=\frac{-1}{2}x+2[/tex]

Hope this helps!

[tex]\text {-TestedHyperr}[/tex]

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